Abstract The analysis of laterally loaded pile is complex due to its site specific behaviour. Whereas most of the analytical methods provides only a generalized solution to it. Behaviour of piles in clay depends on site specific factors like subsoil condition, type of super-structure and the load transfer from it, construction duration and ground improvement process. The present study deals with the assessment of lateral load behaviour of pile based on the results of conventional and instrumented field load tests. The pile was designed based on the results of laboratory and field geotechnical investigations. The diameter and depth of bored cast in-situ pile were fixed as 600 mm and 16 m from the natural ground level respectively. The deflection profile obtained using inclinometer for various lateral loads on piles tested during different phases of site development were analyzed. The pile bending moment, shear force and soil reaction profile were established from the inclinometer data. The results obtained from the experimental data were found to be comparable with that of analytical method. The non-linear lateral load-displacement curves obtained from the load test conducted at different period of consolidation induced by site development process were analyzed. The curves thus obtained were transferred into a non-dimensional kh/khmax versus shear strain curve for the formation of equation explicit to the specific site. A site specific equation was proposed for the estimation of lateral load-displacement curve with respect to degree of consolidation of the surrounding soil subjected to surcharge load induced by the site development process.

中文翻译：

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侧向荷载作用下固结土中无头桩的非线性性能分析

摘要 侧向荷载桩的分析因其场地特定行为而复杂。而大多数分析方法只提供了一个通用的解决方案。桩在粘土中的行为取决于现场特定因素，如底土条件、上部结构的类型及其负载转移、施工持续时间和地面改善过程。本研究根据常规和仪器化现场载荷试验的结果对桩的横向载荷行为进行评估。该桩是根据实验室和现场岩土工程调查的结果设计的。钻孔灌注桩的直径和深度分别固定为距自然地面600 mm和16 m。分析了在场地开发的不同阶段测试的桩上使用测斜仪获得的各种侧向载荷的挠度剖面。根据测斜仪数据建立桩弯矩、剪力和土壤反应剖面。发现从实验数据获得的结果与分析方法的结果具有可比性。分析了由场地开发过程引起的不同固结期的荷载试验得到的非线性横向荷载-位移曲线。将如此获得的曲线转化为无量纲的 kh/khmax 对剪切应变的曲线，以形成对特定位点明确的方程。